420030523 has 8 divisors (see below), whose sum is σ = 458392896. Its totient is φ = 381697800.

The previous prime is 420030503. The next prime is 420030593. The reversal of 420030523 is 325030024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420030523 - 2⁹ = 420030011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420030523.

It is not an unprimeable number, because it can be changed into a prime (420030503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30808 + ... + 42298.

It is an arithmetic number, because the mean of its divisors is an integer number (57299112).

Almost surely, 2^420030523 is an apocalyptic number.

420030523 is a deficient number, since it is larger than the sum of its proper divisors (38362373).

420030523 is a wasteful number, since it uses less digits than its factorization.

420030523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14825.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 420030523 is about 20494.6462033381. The cubic root of 420030523 is about 748.9053797786.

Adding to 420030523 its reverse (325030024), we get a palindrome (745060547).

The spelling of 420030523 in words is "four hundred twenty million, thirty thousand, five hundred twenty-three".